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Comparison between Quinoa and Quillaja saponins in the Formation, Stability and Digestibility of Astaxanthin-Canola Oil Emulsions
| Content Provider | MDPI |
|---|---|
| Author | Sotomayor-Gerding, Daniela Morales, Eduardo Rubilar, Mónica |
| Copyright Year | 2022 |
| Description | Saponins from Quillaja saponaria and Chenopodium quinoa were evaluated as natural emulsifiers in the formation of astaxanthin enriched canola oil emulsions. The aim of this study was to define the processing conditions for developing emulsions and to evaluate their physical stability against environmental conditions: pH (2–10), temperature (20–50 °C), ionic strength (0–500 mM NaCl), and storage (35 days at 25 °C), as well as their performance in an in vitro digestion model. The emulsions were characterized, evaluating their mean particle size, polydispersity index (PDI), and zeta potential. Oil-in-water (O/W) emulsions were effectively produced using 1% oil phase and 1% emulsifier (saponins). Emulsions were stable over a wide range of pH values (4–10), but exhibited particle aggregation at lower pH, salt conditions, and high temperatures. The emulsion stability index (ESI) remained above 80% after 35 days of storage. The results of our study suggest that saponins can be an effective alternative to synthetic emulsifiers. |
| Starting Page | 43 |
| e-ISSN | 25045377 |
| DOI | 10.3390/colloids6030043 |
| Journal | Colloids and Interfaces |
| Issue Number | 3 |
| Volume Number | 6 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-08-28 |
| Access Restriction | Open |
| Subject Keyword | Colloids and Interfaces Food Science and Technology Oil-in-water (o/w) Emulsion Emulsifier Saponin Astaxanthin Quillaja Saponaria Chenopodium Quinoa Canola Oil Zeta Potential Particle Size in Vitro Digestion |
| Content Type | Text |
| Resource Type | Article |
